Premium
Effect of various organic fibers on the stiffness, strength and impact resistance of polypropylene; a comparison
Author(s) -
Várdai Róbert,
Ferdinánd Milán,
Lummerstorfer Thomas,
Pretschuh Claudia,
Jerabek Michael,
Gahleitner Markus,
Faludi Gábor,
Móczó János,
Pukánszky Béla
Publication year - 2021
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.6105
Subject(s) - polypropylene , materials science , composite material , ultimate tensile strength , izod impact strength test , vinyl alcohol , scanning electron microscope , composite number , deformation (meteorology) , synthetic fiber , fiber , stiffness , polymer
Composites were prepared from a polypropylene homopolymer and four types of organic fibers, wood, flax, poly(ethylene terephthalate) (PET) and poly(vinyl alcohol) (PVA). Mechanical properties were studied by tensile and impact testing, and structure by scanning electron microscopy. Local deformation processes were followed by acoustic emission testing. Composite strength changes in a wide range and depends on coupling. The deformability of the composites also varies considerably, more plastic deformation occurring in composites prepared with the PET and PVA fibers. Compared to traditional stiff fibers, fracture resistance can be improved significantly with PET and PVA fibers; impact strength as large as 30 kJ m –2 can be achieved with PVA. © 2020 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry.